CN113633276A - Spinal deformity measuring device - Google Patents

Abstract

The invention discloses a spinal deformity measuring device, comprising: the front surface of the base plate is provided with a first indication scale; the supporting rod is arranged in the middle of the back surface of the substrate and extends towards the direction far away from the back surface of the substrate; the two measuring scales are provided with second indication scales, each measuring scale is arranged on the base plate in a mode of sliding relative to the base plate, and the two measuring scales are respectively arranged on two sides of the supporting rod; wherein, when measuring, indicate the transverse distance of dipperstick for the bracing piece through first instruction scale, indicate the longitudinal distance of one end of dipperstick for the base plate through the second instruction scale on the dipperstick. The invention has simple structure and convenient operation, can greatly simplify the work of medical personnel for measuring the back deformity of the razor, and can improve the working efficiency and reduce the working strength.

Description

Spinal deformity measuring device

Technical Field

The invention relates to the field of measurement before orthopedic deformity correction, is applied to measurement of razor back deformity, and particularly relates to a spinal deformity measuring device.

Background

In a thoracic scoliosis deformity, bilateral ribs bulge or recess due to spinal rotation and make the thoracic back asymmetrical, called a razor-back deformity. The malformation of the back of the razor not only affects the appearance of the patient with scoliosis deformity of the thoracic vertebra, but also causes back pain and respiratory function limitation of the patient, and leads to self-inferior feeling and psychological disorder. In order to improve the appearance and the lung function, patients with serious razor back deformity need surgical correction, namely, the height difference of the bilateral backs of the razor back deformity is more than 3cm, and a thoracoplasty is needed. The current methods for measuring the dorsal deformity of the thoracic spine scoliosis razor mainly comprise the following three methods: the first method is a back surface measurement, which is a measurement of the height of the back of the razor directly using a ruler, using the shoulder blade line on the opposite side of the back of the razor as a reference horizontal position. The second method is to measure the height of the humped rib on the X-ray film at the 90-degree bend position of the patient with the humped contralateral rib as the baseline. The third method is to take the standard position of the patient's lateral spine X-ray film and measure the distance between the convex and concave peaks of the ribs. The first method causes large errors in the readings due to the multiple use of the straightedge and also interferes with the measurement if the straightedge is level. The latter two methods require the imaging technologist to take a standard lateral image and professional personnel to perform the analysis and calculation. Therefore, there is a need for an improvement in the prior art to obtain measurements quickly and accurately.

Disclosure of Invention

The invention aims to provide a spinal deformity measuring device which can enable a clinician to quickly and accurately measure the dorsal deformity of a thoracic spine scoliosis razor.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

according to one embodiment of the present invention, a spinal deformity measurement device includes: the front surface of the base plate is provided with a first indication scale; the level gauge is arranged on the substrate to indicate whether the front surface of the substrate is horizontal or not; the supporting rod is arranged in the middle of the back surface of the substrate and extends towards the direction far away from the back surface of the substrate; the two measuring scales are provided with second indication scales, each measuring scale is arranged on the base plate in a mode of sliding relative to the base plate, and the two measuring scales are respectively arranged on two sides of the supporting rod; wherein, when measuring, indicate the transverse distance of dipperstick for the bracing piece through first instruction scale, indicate the longitudinal distance of one end of dipperstick for the base plate through the second instruction scale on the dipperstick.

Preferably, the two measuring scales are arranged on the linkage mechanism, so that the two measuring scales move away from or close to the supporting rod together with the same moving amplitude under the control of the linkage mechanism.

Preferably, the linkage mechanism is a feed screw and nut mechanism, and the measuring scale is arranged on a slide block serving as a nut of the feed screw and nut mechanism.

Preferably, a sliding groove is formed in the substrate, the lead screw nut mechanism includes a lead screw, a first slider and a second slider, threads with different turning directions are respectively arranged from the middle portion to the two ends of the lead screw, the first slider and the second slider are respectively arranged on two portions of the lead screw with the threads with different turning directions to form a lead screw nut pair, two measuring scales are respectively slidably sleeved on the first slider and the second slider, and a part of the first slider and a part of the second slider are clamped in the sliding groove to limit rotation of the first slider and the second slider.

Preferably, the spinal deformity measurement device further includes: a link mechanism having a proximal end connected to an end of the support bar remote from the back surface of the base plate and a distal end connected to the base, the link mechanism being configured to hold the support bar at a specific position in a posture after the support bar is moved to the specific position in the posture.

Preferably, link mechanism includes first connecting rod, second connecting rod and third connecting rod, the one end of first connecting rod rotate connect in keeping away from of bracing piece the one end at the back of base plate, the other end of first connecting rod rotate connect in the one end of second connecting rod, and the body of rod of second connecting rod is towards keeping away from the planar direction of rotation of first connecting rod extends, the second connecting rod is the telescopic link, the other end rigid coupling of second connecting rod in the one end of third connecting rod, the body of rod of third connecting rod is towards being parallel or roughly parallel the planar direction of rotation of first connecting rod extends.

Preferably, the support rod is connected with the base plate through a spherical hinge.

Preferably, the spherical hinge comprises a damping adjusting knob for adjusting the damping of the rotation of the supporting rod relative to the link mechanism.

Preferably, the ball hinge further comprises a ball seat, a ball head, a wear plate and a spring, the ball head is arranged in the ball seat, a mounting hole is formed in the ball seat, the wear plate and the spring are arranged in the mounting hole, the damping adjusting knob is in threaded connection with the mounting hole, and the damping adjusting knob presses the wear plate against the ball head through the spring.

Preferably, two ends of the screw rod are connected to the base plate through a rod seat, and at least one end of the screw rod is provided with a transverse adjusting knob for rotating the screw rod.

The invention has at least the following advantages:

firstly, the structure is simple and the maintenance is convenient;

secondly, convenient operation can simplify the work that medical personnel measured razor back of the body deformity greatly, can improve work efficiency and reduce working strength.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a partial schematic view of one embodiment of the present invention;

FIG. 3 is a schematic view of a level according to one embodiment of the present invention;

FIG. 4 is a schematic view of an embodiment of the present invention in use;

FIG. 5 is an enlarged partial schematic view of one embodiment of a second indicating scale on the measuring scale in accordance with one embodiment of the present invention;

FIG. 6 is an enlarged partial schematic view of another implementation of a second indicating scale on the measuring scale in accordance with an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of one embodiment of the present invention;

FIG. 8 is a partial schematic view of one embodiment of the present invention;

FIG. 9 is a schematic structural diagram of one embodiment of the present invention;

FIG. 10 is a schematic structural diagram of one embodiment of the present invention;

FIG. 11 is a partial schematic view of an embodiment of the present invention;

FIG. 12 is a simplified cross-sectional schematic view of a ball joint of one embodiment of the present invention.

In the figure: 100-base plate, 110-first indication scale, 120-sliding chute, 130-transverse elongated hole, 200-level gauge, 300-supporting rod, 400-measuring scale, 410-first measuring scale, 420-second measuring scale, 430-second indication scale, 500-linkage mechanism, 510-screw rod, 520-sliding block, 521-first section, 522-second section, 5221-sliding hole, 5222-pointer, 523-third section, 5231-screw hole, 520A-first sliding block, 520B-second sliding block, 530-transverse adjusting knob, 540-rod seat, 600-link mechanism, 610-first link, 620-second link, 630-third link, 640-locking nut, 700-base, 800-spherical hinge, 800-transverse adjusting knob, 540-rod seat, 600-link mechanism, 810-damping adjusting knob, 820-ball seat, 821-mounting hole, 830-ball head, 840-wearing plate, 850-spring, 860-hand nut, 870-connecting lug, D1-first target value and D2-second target value.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that, if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used for indicating the orientation or positional relationship indicated based on the drawings, they are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is also to be understood that the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, the term "plurality", if any, means two or more unless specifically limited otherwise.

In the description of the present invention, it should be further understood that the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, and for example, the terms "mounting," "connecting," "fixing," and the like may be fixed, detachable, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To one of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood as appropriate, unless explicitly stated and/or limited otherwise.

In the description of the present invention, it should also be understood that "over" or "under" a first feature may include the first and second features being in direct contact, and may also include the first and second features being in contact not directly but through another feature therebetween, unless expressly stated or limited otherwise. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

According to an embodiment of the present invention, there is provided a spinal deformity measurement device, which may include: at least one of the base plate 100, the level gauge 200, the support bar 300, the two measuring scales 400, the linkage 500, the linkage 600, the base 700, and the ball joint 800.

According to one embodiment of the present invention, a spinal deformity measuring device may include a base plate 100, a level gauge 200, a support bar 300, and two measuring scales. The front surface of the substrate 100 may be provided with a first indication scale 110. A level 200 may be provided on the substrate 100 to indicate whether the front surface of the substrate 100 is level. The supporting bar 300 may be disposed at the middle of the rear surface of the substrate 100 and extend in a direction away from the rear surface of the substrate 100. Each measuring scale 400 may be provided with a second indicating scale 430. Each of the measuring sticks 400 may be provided on the substrate 100 in a manner to be slidable relative to the substrate 100. For example, the substrate 100 may be provided with a chute 120. The measuring tape 400 can be disposed in the sliding block 520 slidably engaged with the sliding groove 120. The slider 520 may be provided with a slide hole. The measuring ruler 400 can be inserted into the slide hole in a sliding way. The two measuring sticks 400 may be spaced apart from each other on either side of the support rod 300. For example, referring to fig. 1, a first measuring ruler 410 and a second measuring ruler 420 of the two measuring rulers 400 are respectively arranged at two sides of the support rod 300. In the measurement, a lateral distance of the measuring scale 400 with respect to the support rod 300 is indicated by the first indication scale 110, and a longitudinal distance of one end of the measuring scale 400 with respect to the base plate 100 is indicated by the second indication scale 430 on the measuring scale 400. When the medical staff uses the spinal deformity measuring device of the present embodiment, the operation process may be: firstly, a patient lies on the bed, one end of the supporting rod 300 far away from the base plate 100 is abutted against the vertebra of the patient, the base plate 100 is adjusted to the horizontal posture, one measuring scale 400 is transversely slid to the rib bulge to be measured, the transverse distance of the measuring scale 400 relative to the supporting rod 300 is observed, then the other measuring scale 400 is adjusted to the same transverse distance relative to the supporting rod 300, the reading measured by the second graduated scale of the two measuring scales is read (the longitudinal distance of one end of the measuring scale relative to the base plate 100 is indicated), and the height difference of two positions to be measured on the body surface of the patient is calculated. The medical staff can know the rib deformity of the patient according to the transverse distance and the height difference and can be used as reference information for making a surgical plan. The medical staff can adjust the position of the end of the support rod 300 far away from the base plate 100 against the vertebra of the patient, and repeatedly measure the data of other positions of the body surfaces by the same principle so as to obtain more reference information. The technical scheme of the embodiment can at least realize the following beneficial technical effects: the invention has simple structure, low cost and easy maintenance, is easier for the medical care personnel to operate than the prior art, and can intuitively measure the required reference information faster.

Preferably, the middle of the first indicating scale 110 is zero scale, and the scale values symmetrically increase from the middle to both sides, and the schematic structure is shown in fig. 2.

Preferably, the level 200 may be an existing mechanical or electronic level. The mechanical level may be, for example, a bar-shaped level as shown in fig. 1, or a round level as shown in fig. 3.

According to one embodiment of the present invention, the spinal deformity measurement device is shown in use in fig. 4. The medical staff abuts the distal end of the support rod 300 against the spinous process of the spine, then moves one measuring ruler to the high point of the protrusion of the dorsal razor dorsal deformity, i.e. the position shown on the right side of fig. 4, observes the first indicating scale to obtain the lateral displacement of the measuring ruler, then moves the other measuring ruler in the opposite direction by the same lateral displacement on the other side of the support rod, and respectively reads the vertical readings on the two measuring rulers, from which the first target value D1 and the second target value D2 can be obtained. The first target value D1 is the height difference between the high point at the bulge of the back deformity of the razor relative to the spinous process of the spine. The second target value D2 is the difference in height at the spinal spinous process relative to a point of symmetry of the high point at the bulge of the back deformity of the razor. The first target value D1 and the second target value D2 may be used by medical personnel to understand the extent of the patient's razor back deformity prior to performing an operation in order to take a corresponding treatment regimen. The reading of the second indicating scale on the measuring scale 400 may also have various configurations. For example, referring to figure 5, a first arrangement is for the second indicating scale to be read progressively increasing from one end of the measuring scale to the other. Preferably, the size of the measuring scale is gradually increased from one end of the measuring scale, which is positioned at the same side with the supporting rod, to the other end of the measuring scale. In this arrangement, the predetermined distance (e.g., 100 mm) from one end of the support rod to the base plate is obtained in advance, and D1 and D2 can be calculated as follows: d1= vertical reading of the first measuring ruler 410-preset distance; d2= preset distance — vertical reading of the second measuring ruler 420. For another example, referring to FIG. 6, a second arrangement is where the reading of the second indicating scale increases from the middle of the measuring tape towards the ends. I.e. zero scale in the middle of the measuring scale. And the distance from the zero scale of the measuring scale to one end of the measuring scale on the same side with the support rod is equal to or approximately equal to the distance from the back surface of the substrate to the far end of the support rod. In this case, the thickness of the substrate 100 can be set as small as possible to reduce the influence on the reading. Thus, the medical professional may directly read the vertical reading of the first measuring scale 410 moving downward as the first target value D1 and read the vertical reading of the second measuring scale 420 moving upward as the first target value D2. The second arrangement is particularly preferred in the present invention in order to more quickly obtain the desired values of D1 and D2 without having to go through scaling.

In the previous embodiment, the two measuring sticks 400 slide independently of each other, and in order to measure two points, the two measuring sticks need to be moved in two separate steps. And actually, the purpose of the two measuring sticks 400 is to measure the height difference of the symmetrical points at the same distance from the support stick 300, so that the above embodiment can be further modified to perform the measurement more rapidly.

According to an embodiment of the present invention, referring to fig. 7, two measuring sticks 400 may be provided on the linkage 500, so that the two measuring sticks 400 are moved away from or close to the supporting rod 300 together with the same moving amplitude by the control of the linkage 500. The technical scheme of the embodiment can at least realize the following beneficial technical effects: through link gear 500, medical personnel can only realize adjusting two dipperstick 400 to symmetrical horizontal position through adjusting once and adjust, and the medical personnel operation of being more convenient for avoids having the position asymmetry that link gear 500 leads to and repeated the regulation, has alleviateed medical personnel's intensity of labour to, position control also can be more accurate, thereby obtains more accurate result.

Preferably, the linkage 500 may be a lead screw and nut mechanism. The measuring scale 400 may be provided on a slide 520 of the feed screw-nut mechanism as a nut. Preferably, the sliding groove 120 is formed on the substrate 100, and the lead screw and nut mechanism may include a lead screw 510, a first slider 520A, and a second slider 520B. The first slider 520A and the second slider 520B may be provided with screw holes adapted to different turning positions of the lead screw 510, so as to be used as nuts of a lead screw nut pair. The screw 510 is provided with threads having different turning directions from the middle portion to both ends, respectively. The first slider 520A and the second slider 520B are respectively provided on two portions of the lead screw 510 having threads with different turning directions to form a lead screw nut pair. The two measuring sticks 400 can be respectively sleeved on the first slide block 520A and the second slide block 520B in a sliding manner, and a part of the first slide block 520A and the second slide block 520B is clamped in the sliding groove 120 to limit the rotation thereof. For example, referring to fig. 7, the left side is a first measuring ruler 410, the right side is a second measuring ruler 420, the first measuring ruler 410 is slidably sleeved on a first sliding block 520A, and the first sliding block 520A is disposed at one end of the screw 510. The second measuring ruler 420 is slidably sleeved on the first slider 520A and the second slider 520B, the second slider 520B is arranged at the other end of the screw rod 510, and the screw thread directions of the two ends of the screw rod 510 are different from each other. The linkage mechanism 500 further improves the accuracy of the position adjustment by using a feed screw and nut mechanism. It should be noted that the screw-nut mechanism is only an exemplary structure, and the present invention does not set any limit to the structure of the linkage mechanism. For example, the linkage mechanism can also be a gear rack mechanism, a gear is arranged in the middle of the substrate, and the two racks are meshed with the gear, so that the measuring scale on the racks is driven to be linked.

Preferably, referring to fig. 8, the slider 520 may include at least one of a first section 521, a second section 522 and a third section 523 connected to each other. The first section 521 can be slidably engaged in the sliding groove 120. The second section 522 may have a slide hole 5221 formed therein. The measuring rod 400 is slidably inserted into the sliding hole 5221. The base plate 100 may be provided with transverse elongated holes 130 arranged in parallel in the sliding direction of the slider 520. The transverse elongated hole 130 may be a through hole penetrating from the front surface to the back surface of the substrate 100. When the slider 520 is snapped into place in the slide groove 120 in a plane of projection perpendicular to the base plate 120, the slide hole 5221 of the second section 522 is within the outline of the transverse elongated hole 130. Thus, the measuring scale 400 provided in the slide hole 5221 can be adjusted so as to pass through the transversely elongated hole 130. Preferably, an end of the second section 522 remote from the first and third sections 521, 523 may form a pointer 5222 for indicating the lateral position at which the measurement ruler 400 is located. Preferably, the third section 523 can be provided with a screw hole 5231. The slide 520 can thus be used as a nut of a spindle nut pair. The structure of the invention is skillfully arranged, the slide block 520 has a plurality of functions, and a plurality of parts can be organically integrated into a whole, so that the invention can efficiently and conveniently realize the measurement work.

Preferably, both ends of the lead screw 510 may be connected to the base plate 100 through the lever base 540. At least one end of the lead screw 510 may be provided with a lateral adjustment knob 530 for rotating the lead screw 510. Preferably, both ends of the lead screw 510 are provided with lateral adjusting knobs 530 for rotating the lead screw 510, so that people at different positions can control the lead screw to adjust the lateral position of the measuring ruler.

In the foregoing embodiment, the supporting rod 300 is only a vertical rod without a retaining mechanism, during the actual operation process, the supporting rod 300 needs to be held by hand and abutted against the spine, and then the subsequent adjustment of the base plate to the horizontal state, the operation of the measuring scale and the like all need to be operated by hand, and often the measurement can be completed well by the cooperation of two medical staff, and although the measurement by one medical staff is also feasible, the measurement may need long-term experience and training, and the measurement can be completed by repeatedly adjusting the patient's mind for many times. In other words, the medical staff who needs to measure during the measurement holds his posture by hand so that the front surface of the base plate 100 is horizontal. And the positions of the two measuring scales 400 are adjusted and read while maintaining the posture thereof, and the measurement can be completed quickly by a certain experience. Thus, the above-described embodiment can be further improved to more quickly complete the measurement.

According to one embodiment of the present invention, a spinal deformity measurement device may include: the link mechanism 600. The proximal end of the link mechanism 600 may be connected to an end of the support bar 300 away from the rear surface of the base plate 100, and the distal end of the link mechanism 600 may be connected to the base 700. The link mechanism 600 may be used to maintain the support stick 300 at a specific position in a certain posture after the support stick 300 is moved to the specific position in the certain posture. Preferably, the link mechanism 600 may include a first link 610, a second link 620, and a third link 630. One end of the first link 610 may be rotatably connected to an end of the support bar 300 away from the back surface of the substrate 100. The other end of the first link 610 may be rotatably connected to one end of the second link 620. The rod body of the second link 620 may extend in a direction away from the rotation plane of the first link 610; thereby, a lateral adjustment of the position of the support bar is achieved, for example, depending on the position of the patient lying down or standing stooped, the second link is finely adjusted such that the lateral position of the support bar is adjusted in order to adjust the lower end of the support bar against the spinous process of the spine. The second link 620 may be a telescopic rod formed of at least two rod bodies nested into each other. At least two rod bodies of the second link 620 nested with each other can rotate relative to each other; therefore, the position of the supporting rod can be adjusted conveniently by rotating and adjusting. The other end of the second link 620 may be fixedly connected to one end of the third link 630. The rod body of the third link 630 may extend in a direction parallel or substantially parallel to the rotation plane of the first link 610; therefore, the height of the supporting rod can be adjusted. Preferably, the support rod and the first connecting rod, and the first connecting rod and the second connecting rod can be rotatably connected by adopting a rotary joint. The rotary joint may be a rotary joint that remains fixed in rotation to a predetermined number of positions. There are many such rotary joints in the prior art, and the present invention can be used directly with existing products. It should be understood that the relative rotation position and the relative expansion position between the rods can be provided with a locking nut to lock after being adjusted to the corresponding positions. For example, as shown in fig. 10, two opposing retractable segments of the third rod 630 are provided with a locking nut 640. The technical scheme of the embodiment can at least realize the following beneficial technical effects: firstly, after the connecting rod mechanism is adopted, medical staff can conveniently and quickly adjust the supporting rod to a required position; secondly, after the connecting rod mechanism is adopted, the supporting rod is abutted against the spinous process of the spine, the supporting rod can be kept at the corresponding position through the connecting rod mechanism without holding the supporting rod by hands all the time, so that medical workers can move the supporting rod to the measuring position abutted against the spine and adjust the posture to the base plate level, then two hands can be vacated for later operation, and the single medical worker can conveniently and quickly complete the measurement.

In the foregoing embodiment, the connection between the base plate 100 and the link mechanism 600 is achieved only by the support rod 300. This connection mode may cause a great effort to adjust the front surface of the base plate 100 to a horizontal state when the floor or the operation table where the base 700 is located is not horizontal, for example: multiple attempts have been made to use different thicknesses of paper or other material to cushion the base 700 from the floor or countertop. Thus, the above-described embodiment can be further improved to more quickly complete the measurement.

According to an embodiment of the present invention, the support rod 300 and the link mechanism 600 may be connected by a ball joint 800. Preferably, the ball joint 800 may be provided with a connection ear 870 having a hole. The ball seat 820 can be rotatably coupled to the first link 610 by the coupling lug 870 and can be loosened and locked by manually tightening the nut 860. However, hand-threading nut 860 serves only as a coarse adjustment, as the degree of freedom of single angle adjustment is limited. Fine adjustment may be achieved by the ball joint 800. Preferably, the ball joint 800 may include a damping adjustment knob 810 for adjusting the amount of damping the support rod 300 rotates relative to the linkage 600. Preferably, ball joint 800 may include ball seat 820, ball head 830, wear plate 840, and spring 850. Ball head 830 may be disposed in ball seat 820 to form a ball-and-socket joint. Ball seat 820 may be provided with a mounting hole 821. Wear plate 840 and spring 850 may be disposed within mounting hole 821. The damping adjustment knob 810 may be screwed into the mounting hole 821. Damping adjustment knob 810 may press wear plate 840 against ball head 830 via spring 850. The technical scheme of the embodiment can at least realize the following beneficial technical effects: firstly, the use of the spherical hinge 800 enables the invention to realize the angle adjustment of the substrate 100 through the spherical hinge 800 when the base 700 is arranged on a non-horizontal surface, thereby facilitating the finding of a horizontal state; secondly, damping adjust knob 810, ball seat 820, bulb 830, wearing plate 840 and spring 850's setting can be convenient for adjust the relative pivoted damping of base plate and bracing piece as required, for example, in the use, adjust as required according to medical personnel's use habit, strength's size, wearing plate's wearing and tearing condition etc. to satisfy different users 'service behavior more individualized, also avoided the ball pivot wearing and tearing and the unable directly regulated's of damping condition, reduce maintenance cost.

According to an embodiment of the present invention, an opening is formed at an opposite side of the connection portion of the ball seat 820 with the support shaft 300 so that a portion of the ball head 830, which is far away from the support shaft, leaks out of the ball seat 820, and the leaked portion serves as a contact point of the support shaft 300 with a human body. The technical scheme of the embodiment can at least realize the following beneficial technical effects: the structure of this setting mode is ingenious, has both guaranteed the accurate adjustment to the angle of bracing piece 300 to make the base plate be in the horizontality when measuring, make the distance of base plate and contact point not receive the change because of the accurate adjustment again, ensure measuring accuracy. For example, if not adopting the spherical hinge structure that this kind of new design's two sides leaked, when the fine setting bracing piece angle, the contact point was located the ball seat for contact point and base plate relative angle change, the length of actual bracing piece and the length of predetermineeing the bracing piece can the run-off, thereby lead to measuring accurate inadequately. For another example, if the ball joint is disposed between the base plate and the finger stick as a connection point of the base plate and the support bar, the measurement may not be accurate enough because the support bar and the base plate are not perpendicular to each other during fine adjustment.

According to an embodiment of the present invention, the attachment lugs 870 and the hand nuts 860 are disposed between the base plate 100 and the ball head 830 in such a manner that a portion that does not obstruct the leakage of the ball head 830 is a contact point where the support bar 300 contacts the human body. Thus, in the operating state, the lower edges of the engaging lug 870 and the hand nut 860 are always higher than the location of the ball head that leaks out and serves as a contact point, so as not to hinder the measurement.

The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A spinal deformity measurement device, comprising:

a substrate (100) on which a first indication scale (110) is arranged;

a support bar (300) which is arranged in the middle of the back surface of the substrate (100) and extends in a direction away from the back surface of the substrate (100);

two measuring scales (400) with second indicating scales (430), wherein each measuring scale (400) is arranged on the substrate (100) in a manner of sliding relative to the substrate (100), and the two measuring scales (400) are respectively arranged at two sides of the supporting rod (300);

when in measurement, the transverse displacement of the measuring scale (400) is measured through the first indicating scale (110), and the vertical displacement of the measuring scale (400) is measured through the second indicating scale (430) on the measuring scale (400).

2. The spinal deformity measuring device of claim 1, wherein said two measuring scales (400) are provided on a linkage mechanism (500) such that the two measuring scales (400) are moved together in a direction away from or toward the support rod (300) with the same movement magnitude by the control of the linkage mechanism (500).

3. A spinal deformity measuring device according to claim 2, wherein said linkage mechanism (500) is a lead screw-nut mechanism, and said measuring scale (400) is provided on a slide (520) as a nut of the lead screw-nut mechanism.

4. The spinal deformity measurement device of claim 3, wherein the base plate (100) is provided with a sliding slot (120), the lead screw-nut mechanism comprises a lead screw (510), a first slider (520A) and a second slider (520B), the lead screw (510) is provided with threads having different rotation directions from the middle to both ends, the first slider (520A) and the second slider (520B) are provided on two portions of the lead screw (510) having the threads having different rotation directions to form a lead screw-nut pair, two measuring scales (400) are slidably sleeved on the first slider (520A) and the second slider (520B), and a portion of the first slider (520A) and the second slider (520B) is clamped in the sliding slot (120) to limit the rotation thereof.

5. A spinal deformity measurement device according to claim 4, further comprising:

a link mechanism (600), a proximal end of the link mechanism (600) being connected to an end of the support rod (300) away from the rear surface of the base plate (100), a distal end of the link mechanism (600) being connected to the base (700), the link mechanism (600) being for holding the support rod (300) at a specific position in a posture after the support rod (300) is moved to the specific position in the posture.

6. The spinal deformity measurement device of claim 5, wherein the linkage mechanism (600) includes a first link (610), a second link (620), and a third link (630), one end of the first connecting rod (610) is rotatably connected to one end of the supporting rod (300) far away from the back surface of the base plate (100), the other end of the first connecting rod (610) is rotatably connected with one end of the second connecting rod (620), and the rod body of the second link (620) extends in a direction away from the rotation plane of the first link (610), the second connecting rod (620) is a telescopic rod, the other end of the second connecting rod (620) is fixedly connected with one end of the third connecting rod (630), the body of the third link (630) extends in a direction parallel or substantially parallel to the plane of rotation of the first link (610).

7. The spinal deformity measurement device of claim 5 or 6, wherein the support rod (300) and the base plate (100) are connected by a ball joint (800).

8. The spinal deformity measurement device of claim 7, wherein the ball joint (800) includes a damping adjustment knob (810) for adjusting an amount of damping of the rotation of the support rod (300) relative to the linkage (600).

9. The spinal deformity measurement device of claim 8, wherein the ball hinge (800) further comprises a ball seat (820), a ball head (830), a wear plate (840) and a spring (850), the ball head (830) is disposed in the ball seat (820), a mounting hole (821) is disposed on the ball seat (820), the wear plate (840) and the spring (850) are disposed in the mounting hole (821), the damping adjustment knob (810) is threadedly connected to the mounting hole (821), and the damping adjustment knob (810) presses the wear plate (840) against the ball head (830) through the spring (850).

10. A spinal deformity measuring device according to any one of claims 3 to 9, wherein both ends of said lead screw (510) are connected to said base plate (100) by means of a stem socket (540), and at least one end of said lead screw (510) is provided with a lateral adjustment knob (530) for rotating the lead screw (510).

Images